In the current state, the same set of material particles forms a tetrahedron of some other shape, and the forces acting on all faces are in the direction of x1 , with the forces on faces a1 , a2 , a3 being of magnitudes 4, 5, 6, respectively. calculate the force on face a. calculate the nominal stress tensor.

Growing crops in urban areas these days is much more advanced and easier than growing crops in California's Central Valley before 1933. Before 1933, there wasn't any fancy machinery to pull the crops from the ground, so we had to do it by hand. There are still many farmers that pull crops out by hand, but these farmers are usually farming for their own food and not for a company or large business that requires crops from the farmers.

Hope this helped!!! :)